OMG! Yesterday we did HC erm... (i don't know the english dungeon name, i think "Tower Utgarde"??)
The second Boss, where die 4 animals get alive before you have to kill the boss.
So, we came in this room. In the group where our 3 guildleaders, me and another guildmember.
At this moment, my girlfriend talked to me, and i activated this bowl to start the boss event at the same time.
At the second, this red light went to the first animal, i just realized, that my group was in fight with the trashmobgroup (4 or 5 mobs).
Our tank was a twink so he couldn't stay the trashmobs and the first bossanimal and we wiped.
The rest of the instance, i had to go 20m behind the group